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Re: Display glitch when drawing a resizable window

From: Ulf Magnusson
Subject: Re: Display glitch when drawing a resizable window
Date: Wed, 12 Jun 2019 01:32:46 +0200

On Wed, Jun 12, 2019 at 12:19 AM Thomas Dickey <address@hidden> wrote:
> On Tue, Jun 11, 2019 at 09:14:52PM +0000, magiblot 1 wrote:
> > Hi,
> >
> > I'm working on a terminal application where you can move and resize windows 
> > with the mouse. This has led me to face the glitch shown in this video:
> >
> > https://drive.google.com/open?id=1w08Yb8ORwSxiMIDH73Sn6qb66DbN7O2q
> looks like turbo vision, e.g., http://tvision.sourceforge.net/
> which I've not looked at for a while.  I recall that it sometimes
> did its own printf's (outside ncurses).
> (but I don't see a sample program in this report - that's where I'd start).

In case it might be related, I sometimes see the line above the bottom
yellow separator line briefly flash black when scrolling down in this

See _draw_main() in
https://github.com/ulfalizer/Kconfiglib/blob/master/menuconfig.py. No
spurious output to stdout that I'm aware of.

Happens in both xterm and gnome-terminal. It's a meh for this
application, because it's relatively rare. I could try to record it if


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